COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Propellers - Variable Pitch - De Havilland
AD/PDH/6 Bracket Type Propellers - Modification 6/67
Applicability: All model PD28/212/1, PD51/212/1, PD92/212/1, PD136/212 /1, PD170/212/1 and PD175/212/1 propellers.
Document: DeHavilland MNS No. 81 (Modification 5226).
Compliance: Before installation in an aircraft following next overhaul completed after 15 July 1967.